“Well, here, Jim, you take my pistol,” said Gen. Sickles, unbuckling it from his belt; “and, if you are successful, I will give you $100.”

Jim hoped he would be, and, bidding us good-by, started off for the gunboat “Satellite,” Capt. Foster, who landed them a short distance below the Potomac-Creek Batteries. They were to return early in the morning, but were unable, from the great distance they went in the interior. Long before daylight on Saturday morning, the gunboat was lying off at the appointed place. As the day dawned, Capt. Foster discovered a mounted picket-guard near the beach, and almost at the same instant saw Jim to the left of them, in the woods, sighting his gun at the rebel cavalry. He ordered the “gig” to be manned, and rowed to the shore. The rebels moved along slowly, thinking to intercept the boat, when Foster gave them a shell, which scattered them. Jim, with only one of his original companions, and two fresh contrabands, came on board. Jim had lost the other. He had been challenged by a picket when some distance in advance of Jim, and the negro, instead of answering the summons, fired the contents of Sickles’s revolver at the picket. It was an unfortunate occurrence; for at that time the entire picket-guard rushed out of a small house near the spot, and fired the contents of their muskets at Jim’s companion, killing him instantly. Jim and the other three hid themselves in a hollow, near a fence, and, after the pickets gave up pursuit, crept through the woods to the shore. From the close proximity of the rebel pickets, Jim could not display a light, which was the signal for Capt. Foster to send a boat.

Capt. Foster, after hearing Jim’s story of the shooting of his companion, determined to avenge his death; so, steaming his vessel close in to the shore, he sighted his guns for a barn, where the rebel cavalry were hiding behind. He fired two shells: one went right through the barn, killing four of the rebels, and seven of their horses. Capt. Foster, seeing the effect of his shot, said to Jim, who stood by, “Well, Jim, I’ve avenged the death of poor Cornelius” (the name of Jim’s lost companion).

Gen. Hooker has transmitted to the War Department an account of Jim’s reconnoissance to Fredericksburg, and unites with the army and navy stationed on the left wing of the Potomac, in the hope that the Government will present Jim with a fitting recompense for his gallant services.—War Correspondent of the New-York Times.

On Thursday, beyond Charlestown, our pickets descried a solitary horseman, with a bucket on his arm, jogging soberly towards them. He proved to be a dark mulatto, of about thirty-five. As he approached, they ordered a halt.

“Where are you from?”

“Southern Army, cap’n,” giving the military salute.

“Where are you going?”

“Coming to yous all.”

“What do you want?”